Hyunshik CHANG

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Johnstown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Iron based media
- Patent number 10,913,665
- Issue date Feb 9, 2021
- Höganäs AB (PUBL)
- Hyunshik Chang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Continuous Backwash Iron Media Reactor, A Wastewater Remediation Pl...
- Publication number 20230339789
- Publication date Oct 26, 2023
- HOGANAS AB (PUBL)
- Hyunshik CHANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
IRON-COMPRISING CONCENTRATE FOR PREPARATION OF IN SITU REMEDIATION...
- Publication number 20220234919
- Publication date Jul 28, 2022
- HOGANAS AB (PUBL)
- Madan TANDUKAR
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
IRON BASED MEDIA
- Publication number 20180099877
- Publication date Apr 12, 2018
- Hyunshik CHANG
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL